Paul Feldman is the "bagel man" who started his own business selling bagels instead of pursuing his old occupation at the Center for Naval Analysis as mentioned in "Freakonomics" by Levitt and Dubner. His bagel selling statistics have been used to determine white collar crime. Wikipedia
The definitive Wikipedia entry for Paul Feldman. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Paul_Feldman